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PERF: unstack 2 the unstackening #43352

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merged 1 commit into from
Sep 1, 2021
Merged

PERF: unstack 2 the unstackening #43352

merged 1 commit into from
Sep 1, 2021

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from asv_bench.benchmarks.reshape import *
self2 = Unstack()
self2.setup("category")

%timeit self2.time_full_product("category")
31.3 ms ± 2.23 ms per loop (mean ± std. dev. of 7 runs, 10 loops each)  # <- master
20.1 ms ± 304 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)  # < PR

Orthogonal to #43335

@jreback jreback added this to the 1.4 milestone Sep 1, 2021
@jreback jreback added Performance Memory or execution speed performance Reshaping Concat, Merge/Join, Stack/Unstack, Explode labels Sep 1, 2021
@jreback jreback merged commit 074ef63 into pandas-dev:master Sep 1, 2021
@jbrockmendel jbrockmendel deleted the perf-unstack-2 branch September 1, 2021 23:35
feefladder pushed a commit to feefladder/pandas that referenced this pull request Sep 7, 2021
@jbrockmendel @feefladder
PERF: unstack 2 the unstackening (pandas-dev#43352)
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Performance Memory or execution speed performance Reshaping Concat, Merge/Join, Stack/Unstack, Explode
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@jbrockmendel @jreback